The flash air inlet for use in poultry (layer). At 20 pascals pressure has an air capacity of 3300m3/h.
The air inlet is insulated product, thus stops cold or warm climates bridging into your building.
The inlet has internal adjustable blades. The early stages of ventilation i.e. in winter and when animals are smaller, the blades can be set to project the air into the apex of the building. Then in summer or when animals are older, the blades can be set to bring air down to animal level.
Optional these air inlets can be fitted with light filters.